Vulnerability in Davedoesdev Python-Jwt
CVE-2022-39227
python-jwt is a module for generating and verifying JSON Web Tokens. Versions prior to 3.3.4 are subject to Authentication Bypass by Spoofing, resulting in identity spoofing, session hijacking or authentication bypass. An attacker who obtains a JWT can arbitrarily forge its contents without knowing the secret key. Depending on the application, this may for example enable the attacker to spoof other user's identities, hijack their sessions, or bypass authentication. Users should upgrade to version 3.3.4. There are no known workarounds.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.053 (92.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.042 · newest: 0.053 · change: +0.011
Affected products
- Davedoesdev Python-Jwt — versions < 3.3.4
- Python-Jwt Project
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/davedoesdev/python-jwt/security/advisories/GHSA-5p8v-58qm-c7fp (Patch, Third Party Advisory)
- github.com/davedoesdev/python-jwt/commit/88ad9e67c53aa5f7c43ec4aa52ed34b7930068… (Patch)
- github.com/pypa/advisory-database/blob/main/vulns/python-jwt/PYSEC-2022-259.yaml (Third Party Advisory)
- www.vicarius.io/vsociety/posts/authentication-bypass-in-python-jwt
Frequently asked questions
- What is CVE-2022-39227?
- CVE-2022-39227 is a critical-severity vulnerability in Davedoesdev Python-Jwt, classified under Authentication Bypass by Spoofing. CVSS score: 9.1/10. Published 2022-09-23.
- How severe is CVE-2022-39227?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2022-39227 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.